Camshaft measuring device

Abstract

The utility model discloses a camshaft measuring device, which relates to the technical field of camshaft measurement and comprises a bottom plate, a mounting rack is fixedly mounted at the upper end of the bottom plate and consists of a base plate, two support plates and a first shaft, the two support plates are symmetrically and fixedly mounted at the upper end of the base plate, and the first shaft is fixedly mounted at the inner ends of the two support plates. An elastic supporting structure is fixedly installed at the position, on the front side of the supporting plate and the first shaft, of the upper end of the base plate, the elastic supporting structure is composed of a spring, an installation plate and a magnetic plate, the installation plate is fixedly installed at the lower end of the spring, and the magnetic plate is fixedly installed at the upper end of the spring. The mounting frame is provided with the elastic supporting structure and the rotary cleaning assembly, and the cam of the camshaft can be cleaned before the camshaft is measured, so that sundries attached to the surface of the cam of the camshaft are cleaned, the situation that the measurement precision is affected due to the fact that the sundries are attached to the surface of the cam is avoided, and finally the accuracy of a measurement result is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to camshaft measurement technical field, especially a kind of camshaft measuring device. BACKGROUND

[0002] Camshaft is the key component inside engine, and its main function is to control the opening and closing of valve. It is usually made of high-strength alloy steel or cast iron, and its shape is a long shaft with multiple cams distributed on it, and each cam corresponds to one or more valves. With the operation of engine, camshaft is connected with crankshaft through timing system (such as chain, belt, etc.), and is driven to rotate by crankshaft. The rotation of camshaft makes the cam contact and push the valve tappet or rocker arm, and then controls the opening and closing time and amplitude of valve, to ensure the smooth progress of engine intake and exhaust process. The design of camshaft directly affects the power output, fuel economy and emission performance of engine, and is an important part of engine technology. After the production of camshaft is completed, it is often necessary to measure the camshaft, and among them, lift measurement is one kind of camshaft measurement. The lift value of camshaft is measured and compared with the standard value to ensure the accurate opening and closing time of valve. When measuring the lift of camshaft, the measuring head of dial gauge can be contacted with the cam of camshaft, and the lift value is measured by rotating camshaft and compared with the standard value. However, if there are sundries attached to the surface of cam of camshaft at this time, it will affect the accuracy of measurement, so that the measurement result will have certain deviation, and therefore a camshaft measuring device is needed to solve the above problems. SUMMARY

[0003] The main purpose of the utility model is to provide a kind of camshaft measuring device, which can effectively solve the problems in the background art.

[0004] To achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0005] A camshaft measuring device, including a base plate, the upper end of the base plate is fixedly installed with a mounting frame, the mounting frame is composed of a base plate, two support plates and a first shaft, the two support plates are symmetrically fixedly installed on the upper end of the base plate, the first shaft is fixedly installed on the inner end of the two support plates, the upper end of the base plate and the front side of the support plate and the first shaft are fixedly installed with an elastic support structure, the elastic support structure is composed of a spring, a mounting plate and a magnetic plate, the mounting plate is fixedly installed on the lower end of the spring, the magnetic plate is fixedly installed on the upper end of the spring, the first shaft is rotatably installed with a rotary cleaning assembly, the rotary cleaning assembly is composed of a base cylinder, a first block, a second shaft, an iron roller, a second block, an L-shaped connecting frame, a square rod, a square cylinder and a sponge cylinder, the first block and the second block are fixedly installed on the outer wall of the base cylinder, the second shaft is fixedly installed in the first block, the iron roller is rotatably installed on the second shaft, the L-shaped connecting frame is fixedly installed on one end of the second block, the square rod is fixedly installed on the inner wall of the L-shaped connecting frame, the sponge cylinder is fixedly sleeved on the square cylinder, and the square cylinder is sleeved on the square rod.

[0006] Preferably, the lower end of the base plate is symmetrically fixedly installed with four supporting legs, the upper end of the base plate is fixedly installed with a supporting rod, the supporting rod is fixedly installed with an adjusting frame, and the adjusting frame is fixedly installed with a dial indicator.

[0007] Preferably, the upper end of the base plate and the front side of the supporting rod are symmetrically fixedly installed with two supporting frames, and the upper end of the base plate and the outer side of one of the supporting frames are fixedly installed with a motor.

[0008] Preferably, the mounting frame is located on the front side of the supporting frame, and the base plate is fixedly installed on the upper end of the base plate.

[0009] Preferably, the mounting plate of the elastic support structure is fixedly installed on the upper end of the base plate.

[0010] Preferably, the base cylinder is rotatably installed on the first shaft, one end of the first block is provided with a connecting groove, the iron roller is rotatably installed in the connecting groove, and the iron roller is simultaneously adsorbed on the upper end of the magnetic plate.

[0011] Compared with the prior art, the camshaft measuring device has the following beneficial effects:

[0012] By setting the mounting rack on the bottom plate, setting the elastic support structure and the rotating cleaning assembly on the mounting rack, the cam of the camshaft can be cleaned before measuring the camshaft, thereby cleaning the sundries attached to the surface of the cam of the camshaft, avoiding the influence of the measurement precision caused by the sundries attached to the surface of the cam, and finally ensuring the accuracy of the measurement result; the existence of the elastic support structure and the rotating installation of the rotating cleaning assembly on the mounting rack, under the elastic force of the elastic support structure, the rotating cleaning assembly can tightly adhere to the surface of the cam, thereby having a better cleaning effect on the cam, and meanwhile, the normal driving of the motor to rotate the camshaft will not be affected. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a whole structure schematic view of the utility model;

[0014] Figure 2 It is a structure schematic view after the mounting rack, the elastic support structure and the rotating cleaning assembly of the utility model are removed;

[0015] Figure 3 It is a structure schematic view of the mounting rack and the elastic support structure of the utility model;

[0016] Figure 4 It is a split view of the rotating cleaning assembly of the utility model.

[0017] In the drawing: 1, bottom plate; 2, mounting rack; 3, elastic support structure; 4, rotating cleaning assembly; 5, support leg; 6, support rod; 7, adjusting frame; 8, dial indicator; 9, support frame; 10, motor; 11, base plate; 12, support plate; 13, first shaft; 14, spring; 15, mounting plate; 16, magnetic plate; 17, base cylinder; 18, first block; 19, connecting groove; 20, second shaft; 21, iron roller; 22, second block; 23, L-shaped connecting frame; 24, square rod; 25, square cylinder; 26, sponge cylinder. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific implementation manners.

[0019] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, a camshaft measuring device, including the bottom plate 1, the upper end of the bottom plate 1 is fixedly installed with the mounting frame 2, the mounting frame 2 is composed of the base plate 11, the support plate 12 and the first shaft 13, the support plate 12 is two and is fixedly installed on the upper end of the base plate 11 symmetrically, the first shaft 13 is fixedly installed on the inner end of the two support plates 12, the upper end of the base plate 11 and on the front side of the support plate 12 and the first shaft 13 is fixedly installed with the elastic support structure 3, the elastic support structure 3 is composed of the spring 14, the mounting plate 15 and the magnetic plate 16, the mounting plate 15 is fixedly installed on the lower end of the spring 14, the magnetic plate 16 is fixedly installed on the upper end of the spring 14, the first shaft 13 is rotatably installed with the rotary cleaning assembly 4, the rotary cleaning assembly 4 is composed of the base cylinder 17, the first block 18, the second shaft 20, the iron roller 21, the second block 22, the L-shaped connecting frame 23, the square rod 24, the square cylinder 25 and the sponge cylinder 26, the first block 18 and the second block 22 are both fixedly installed on the outer wall of the base cylinder 17, the second shaft 20 is fixedly installed in the first block 18, the iron roller 21 is rotatably installed on the second shaft 20, the L-shaped connecting frame 23 is fixedly installed on one end of the second block 22, the square rod 24 is fixedly installed on the inner wall of the L-shaped connecting frame 23, the sponge cylinder 26 is fixedly sleeved on the square cylinder 25, the square cylinder 25 is sleeved on the square rod 24, the lower end of the bottom plate 1 is fixedly installed with four support legs 5 symmetrically, the upper end of the bottom plate 1 is fixedly installed with the support rod 6, the support rod 6 is fixedly installed with the adjusting frame 7, the adjusting frame 7 is fixedly installed with the dial indicator 8, the upper end of the bottom plate 1 and on the front side of the support rod 6 is fixedly installed with two support frames 9 symmetrically, the upper end of the bottom plate 1 and on the outside of one of the support frames 9 is fixedly installed with one motor 10, when the lift of the camshaft is measured, the camshaft can be fixed on the support frame 9 first, at the same time, one end of the camshaft is fixedly connected with the output shaft of the motor 10, and the cam non-convex surface to be measured is in contact with the sponge cylinder 26 on the rotary cleaning assembly 4, then the motor 10 is started, at this time, the motor 10 drives the camshaft to rotate on the support frame 9, and with the rotation of the camshaft, the cam on the camshaft in contact with the sponge cylinder 26 will rub with the sponge cylinder 26, so that the sponge cylinder 26 can clean the dirt attached to the surface of the cam, then the measuring head of the dial indicator 8 is in contact with the cam of the camshaft, and then the lift value is measured with the rotation of the camshaft, and compared with the standard value.

[0020] Finally, by setting the mounting frame 2 on the base plate 1, the elastic support structure 3 and the rotating cleaning assembly 4 on the mounting frame 2, the cam of the camshaft can be cleaned before measuring the camshaft, so that the dirt attached to the surface of the cam of the camshaft is cleaned, thereby avoiding the influence of the measurement accuracy caused by the dirt attached to the surface of the cam, and finally ensuring the accuracy of the measurement result. The existence of the elastic support structure 3 and the rotating installation of the rotating cleaning assembly 4 on the mounting frame 2 enable the rotating cleaning assembly 4 to tightly adhere to the surface of the cam under the elastic force of the elastic support structure 3, thereby having a better cleaning effect on the cam, and meanwhile, the normal driving of the motor 10 to rotate the camshaft is not affected.

[0021] Further, the mounting frame 2 is located on the front side of the support frame 9, the base plate 11 is fixedly installed on the upper end of the base plate 1, the mounting plate 15 on the elastic support structure 3 is fixedly installed on the upper end of the base plate 11, the base cylinder 17 is rotatably installed on the first shaft 13, the first block 18 has a connecting groove 19 at one end, the iron roller 21 is rotatably installed in the connecting groove 19, and the iron roller 21 is simultaneously attracted to the upper end of the magnetic plate 16. In the process of rotating the camshaft, the convex surface of the cam will extrude the sponge cylinder 26 on the rotating cleaning assembly 4. At this time, the rotating cleaning assembly 4 will rotate on the first shaft 13 on the mounting frame 2, and the iron roller 21 on the rotating cleaning assembly 4 will extrude the magnetic plate 16 on the elastic support structure 3 downward, so that the magnetic plate 16 will compress the spring 14. At the same time, the iron roller 21 will also roll on the magnetic plate 16. When the convex surface of the cam is turned, the rotating cleaning assembly 4 will be reversed on the first shaft 13 under the elastic force of the spring 14, so that the sponge cylinder 26 continuously tightly adheres to the surface of the cam, thereby ensuring a better cleaning effect on the cam.

[0022] The above only describes the preferred embodiments of the present application, and is not used to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or equivalently replace some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application. The protection scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A camshaft measuring device comprising a base plate (1), characterised in that: The upper end of the bottom plate (1) is fixedly installed with a mounting rack (2), the mounting rack (2) is composed of a base plate (11), a supporting plate (12) and a first shaft (13), the supporting plate (12) is two and is fixedly installed on the upper end of the base plate (11) symmetrically, the first shaft (13) is fixedly installed on the inner end of the two supporting plates (12), the upper end of the base plate (11) and the front side of the supporting plate (12) and the first shaft (13) are fixedly installed with an elastic supporting structure (3), the elastic supporting structure (3) is composed of a spring (14), a mounting plate (15) and a magnetic plate (16), the mounting plate (15) is fixedly installed on the lower end of the spring (14), the magnetic plate (16) is fixedly installed on the upper end of the spring (14), the first shaft (13) is rotatably installed with a rotating cleaning assembly (4), the rotating cleaning assembly (4) is composed of a base cylinder (17), a first block (18), a second shaft (20), an iron roller (21), a second block (22), an L-shaped connecting rack (23), a square rod (24), a square cylinder (25) and a sponge cylinder (26), the first block (18) and the second block (22) are both fixedly installed on the outer wall of the base cylinder (17), the second shaft (20) is fixedly installed in the first block (18), the iron roller (21) is rotatably installed on the second shaft (20), the L-shaped connecting rack (23) is fixedly installed on one end of the second block (22), the square rod (24) is fixedly installed on the inner wall of the L-shaped connecting rack (23), the sponge cylinder (26) is fixedly sleeved on the square cylinder (25), and the square cylinder (25) is sleeved on the square rod (24).

2. A camshaft measurement device according to claim 1, characterised in that: The lower end of the bottom plate (1) is fixedly installed with four supporting legs (5) symmetrically, the upper end of the bottom plate (1) is fixedly installed with a supporting rod (6), the supporting rod (6) is fixedly installed with an adjusting rack (7), and the adjusting rack (7) is fixedly installed with a dial indicator (8).

3. A camshaft measurement device according to claim 2, wherein: The upper end of the bottom plate (1) and the front side of the supporting rod (6) are fixedly installed with two supporting racks (9) symmetrically, and the upper end of the bottom plate (1) and the outer side of one of the supporting racks (9) are fixedly installed with a motor (10).

4. A camshaft measurement device according to claim 3, wherein: The mounting rack (2) is located on the front side of the supporting rack (9), and the base plate (11) is fixedly installed on the upper end of the bottom plate (1).

5. A camshaft measurement device according to claim 4, wherein: The mounting plate (15) on the elastic supporting structure (3) is fixedly installed on the upper end of the base plate (11).

6. A camshaft measurement device according to claim 5, wherein: The base cylinder (17) is rotatably installed on the first shaft (13), one end of the first block (18) is provided with a connecting groove (19), the iron roller (21) is rotatably installed in the connecting groove (19), and the iron roller (21) is simultaneously adsorbed on the upper end of the magnetic plate (16).

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